Automobile lock



, wIc. THIELL.

AUTOMOBILE LOCK.

APPLICATION FILED JULY 13.1920.

',4 7, .7 tented Aug. 29, 19226 Application filed July 13,

To (2/0 who mft may concern:

Be it lcn'uvn that I, WLLLIAM C. THIELL, a citizen of the United States. residing at Baltimore. in the State of Ivlarylaml, have invented certain new and useful improvements in Automobile Locks, :2 which the .l'ollowing is a. specification.

This invention relates to improvements in automobile locks and has "for its object to provide a cheap. simple and etticient device to look the machine so that it cannotbe started and also to lock the machine so it cannot be towed away.

The invention consists of the novel construction and arrangement 01' the parts hereinatter more fully set forth in the specification and pointed out in detail in the appended claim.

in the accompanying druwing:

i igure l is a side elevation of my invention. the clutch casingheing shown in section. r

Figure is a. detail View of the lever and shaft for operating; the slidahle clutch face. ie errinp; to the accompanying drawings forming partot this specification and in which like reference numerals designate like parts tl'iroug'hout the several views therein", 21 designates the clutch casing through which the driver shaft projects. The said di er shaft is composed of two sections 1 and .2 the section 1 being connected with tho engine-in the front of the n'iachine and the section 2 being connected with the rear of the machine. The front section 1 is provided with a clutch h cc 3 which is provided with internal gears 4 and is fast, on the end of the section 1 of said drive shaft. The other face oi the clutch is slidahly mounted on the 0nd oi the section 2 oi the drive shaft and is provided with external teeth (3 udapted to mesh with the internal teeth on the i'acc 3 on" the clutch. The said clutch 5 is pro vided with an annular groove i' into which is fitted the rollers F5 on the arms 9. the lutter being mounted on the shaft which is operated by the lever ii for moving the slidnhie face 5 into und out of gear with the clutch face 3. The iasc 21 is provided with a bolt 12 adapted to he forced into the annuhir groove 7 of the clutch face 5. the said bolt- 12 being held normally out oi cn gaile mentwith said slot '2' by the spring: 153. The casing 21 is also provided with a lock l4 operated by the he 15. the hitch 18 of said ioch' i'icinghawelicd on one end and adapted Specification of Letters Patent.

1920. Serial No. 395,818.

to he set in the hcvellet oi" the bolt 12. ii'hen tilt locked position the bolt ut ment with the groove 7 and moved hack and forth on the seed drive shutt by operating the lever it is desired to lock the machine the chitch face 5 is drawn hack out of engagement with the clutch face 3 and, the bolt 1" is then pushed down against the a on the spring 13 into the groove 7 and the hitch l6 sp into the recess E7 in which position the unit will he held and the clutch face 5 locked against movement. niong the section 2 of the drive-shaft in. which position the machine cannot be operated unti the latch 16 is withdrawn from the 17 by means of he 15. The rear end of the case is provided with a slidingbolt 18 adapted to en ge one of the cut--outs 19 on the rear of the clutch taco the said bolt 18 being heid in the normal position by the coil sprir the clutch face 1'? is drawn out win will event the eing turned which locks the rear wheei: 0 machine and prevents it from heing to away. is the clutch face 5 is EDGE Pd ward it will not engage the face 3 until the rear end has completely passed of the bolt 18. Shouldthe. space on the rear of the clutch Face 5 lJEi/WGQH the cut-outs 19 strike the end of the bolt. 18 the hitter wiil he pushed hacl' against the action of the coil. spring 20 and any atten'ipt to more the will cause sufiicient revoiution of the section 2 of the drive shaft to allow the said bolt to spring:- into one of the cutouts 1.).

it will thus be seen that by the use oi my invention the machine can he inched or so operated that it cannot he started and that the rear of the machine is looked that it unnot be towed away.

liaving; thus described my invention What I claim is:

An automobile loch comprising a clutch casing. a drivev shat't comprising two sections each projecting into said clutch casino. a clutch lacc fixed to the end of one of the sections oi said drive sha it and having internal gear teeth. a clutch hice sliduhiv mounted on the other section of said drive shaft and having an annular recess therein and '03.- lornal gear teeth. a shaftm unt-ed in said casing at right angles to the (hi r: shalt BEISSUED having two arms pl'ojevting tlwrehwm a roller on the eml 01" each-0f said arms and projecting into said recess in the sli lz1l l0 clutch face, a lever to operatowsaid last 5' named shaft to throw the slilable clutch I'm-e into or out of engagement with the other clutch face, a bolt adapted to pmjovt into llw revel in the slid-able clutch face, a spring to hold Llw Hillll bolt normal out of engugumont with the slillable alum: face. and 10 a lw-k l0 hold the bolt in the slid-able clutch face.

In tes'l'inm'ny wheficof l afllx my signature, 

